Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
総合評価: CVE-2019-9515 は高リスク（69.9/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 87.81%、100 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +78.91% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 8.89% | 87.81% | +78.91% |
| 2 | 2026-05-29 | 9.05% | 8.89% | -0.15% |
| 3 | 2026-04-04 | — | 9.05% | — |
EPSS の全履歴 （全 37 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2019-9515: 4 source package rows (containerd, h2o, nodejs, py3-twisted); 28 state rows across 17 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 28, open 0. | https://security.alpinelinux.org/vuln/CVE-2019-9515 |
debian
|
not yet assigned | CVE-2019-9515 not yet assigned priority: Debian including 2 source packages (h2o, trafficserver), 5 status rows across 3 suites (bookworm, bullseye, sid): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-9515 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2019-9515 |
suse
|
high | CVE-2019-9515 severity important: SUSE including 125 source package names (MozillaFirefox-68.2.0-78.51.4, MozillaFirefox-branding-SLED-68-21.9.8, …), 299 product×package rows across 29 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 8, … (29 product lines)): Fixed 233, Known Not Affected 66. | https://www.suse.com/security/cve/CVE-2019-9515/ |
ubuntu
|
medium | CVE-2019-9515 medium priority: Ubuntu including 7 source packages (golang-google-grpc, grpc, …), 132 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 53, ignored 35, released 19, needed 14, DNE 6, needs-triage 5. | https://ubuntu.com/security/CVE-2019-9515 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apple | swiftnio | >= 1.0.0, <= 1.4.0 | cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 6.0.0, <= 6.2.3 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 7.0.0, <= 7.1.6 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| apache | traffic_server | >= 8.0.0, <= 8.0.3 | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| synology | skynas | — | cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:* |
| synology | diskstation_manager | 6.2 | cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:* |
| synology | vs960hd_firmware | — | cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| opensuse | leap | 15.0 | cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| redhat | jboss_core_services | 1.0 | cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* |
| redhat | jboss_enterprise_application_platform | 7.2.0 | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:*:*:*:*:*:*:* |
| redhat | jboss_enterprise_application_platform | 7.3.0 | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.1 | cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:* |
| redhat | openshift_service_mesh | 1.0 | cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:* |
| redhat | openstack | 14 | cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:* |
| redhat | quay | 3.0.0 | cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:* |
| redhat | single_sign-on | 7.3 | cpe:2.3:a:redhat:single_sign-on:7.3:*:*:*:*:*:*:* |
| redhat | software_collections | 1.0 | cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| oracle | graalvm | 19.2.0 | cpe:2.3:a:oracle:graalvm:19.2.0:*:*:*:enterprise:*:*:* |
| mcafee | web_gateway | >= 7.7.2.0, < 7.7.2.24 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| mcafee | web_gateway | >= 7.8.2.0, < 7.8.2.13 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| mcafee | web_gateway | >= 8.1.0, < 8.2.0 | cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 11.6.1, < 11.6.5.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 12.1.0, < 12.1.5.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 13.1.0, < 13.1.3.2 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 14.0.0, < 14.0.1.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 14.1.0, < 14.1.2.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 15.0.0, < 15.0.1.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| nodejs | node.js | >= 8.0.0, <= 8.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 8.9.0, < 8.16.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 10.0.0, <= 10.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 10.13.0, < 10.16.3 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 12.0.0, < 12.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |